The man solves the math problem. Solving mathematical tasks learning mathematics. Concept of problems with counting patterns. Technology in learning aid.
ID: 1240321111
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- 大图:6437 × 4012 像素·54.5 cm × 33.97 cm·300dpi·JPG
- 中图:1000 × 623 像素·35.28 cm × 21.98 cm·72dpi·JPG
- 小图:500 × 312 像素·17.64 cm × 11.01 cm·72dpi·JPG